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US 9,850,407 B2Granted
Enhanced adhesive composition for re-enforcing joints in gypsum panel construction
AssigneeUnited States Gypsum Company
InventorsKevin W. Moyer, Jr., Pamela L. Hargrove, Rafael Bury
Life of this patent
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Abstract
This invention provides flexible adhesive compositions which can be used instead of joint reinforcement tape for securing a joint seam between abutting panels. Methods using the compositions are provided as well.
Claims20
A flexible adhesive composition comprising:
- fibers with the average length from 0.1 to 3 millimeters and a diameter from 5 microns to 25 microns, wherein the fibers contain polypropylene fibers, polyethylene fibers, rayon fibers, or any combination thereof, wherein the fibers are in the amount from 0.1% to 25% by weight, based on the total composition weight;
- a binder, wherein the binder is a polymeric resin;
- water in the amount from about 25% to about 75% by weight, based on the total composition weight;
- at least one thickener in the amount from about 0.1% to about 2% by weight, based on the total composition weight;
- and
- wherein the composition has a viscosity in the range from about 200 to about 600 Brabender units and a pH in the range from about 7.0 to about 12.
3 more elements
Dependencies are inferred from the claim text.